-
公开(公告)号：US20150123586A1
公开(公告)日：2015-05-07
申请号：US14532003
申请日：2014-11-04
发明人： Yasushi YOSHIDA , Yasuhiro MATSUTANI , Shiro YOSHIDOMI , Hiroshi TAKADA , Yuji ARINAGA , Ikuma MUROKITA , Masanobu HARADA , Hiroki KONDO
CPC分类号： G01D5/3473 , G01D5/24438 , G01D5/34715 , G01D5/34746 , G05B1/04 , G05B2219/37104 , H02K11/22
摘要： The encoder includes a plurality of slit tracks, a point light source, two first light-receiving arrays, two second light-receiving arrays, and a third light-receiving array. The plurality of slit tracks respectively comprises a plurality of reflection slits arranged along a measurement direction. The point light source is configured to emit diffusion light to the plurality of slit tracks. The two first light-receiving arrays are disposed sandwiching the point light source in a width direction substantially orthogonal to the measurement direction. The two second light-receiving arrays are disposed sandwiching the point light source in the measurement direction. The third light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern that differs in pitch from other incremental patterns, and is disposed at a position in a direction where the first light-receiving array is disposed than the point light source.
摘要翻译： 编码器包括多个狭缝轨道，点光源，两个第一光接收阵列，两个第二光接收阵列和第三光接收阵列。 多个狭缝轨道分别包括沿着测量方向布置的多个反射狭缝。 点光源被配置为向多个狭缝轨道发射漫射光。 两个第一光接收阵列被布置成在基本上与测量方向正交的宽度方向上夹着点光源。 将两个第二光接收阵列设置成在测量方向上夹着点光源。 第三光接收阵列被配置为接收由狭缝轨道反射的光，其包括与其他增量图案不同的间距的增量图案，并且被布置在比所述第一光接收阵列设置的方向上的位置 光源。
-
公开(公告)号：US20140197823A1
公开(公告)日：2014-07-17
申请号：US14154184
申请日：2014-01-14
发明人： Shiro YOSHIDOMI , Ikuma MUROKITA , Yasushi YOSHIDA , Jiro MURAOKA , Shoji OYAMA
IPC分类号： G01B7/30
CPC分类号： G01B7/30 , G01P3/487 , H02K11/225
摘要： A rotation detector of a motor according to an embodiment includes a first support and a second support, a pair of magnetic field forming units, at least one magnetic field detector, and a first magnetic member and a second magnetic member. The first magnetic member and the second magnetic member are each made of a magnetic material, cover longitudinal-direction both ends of the magnetic field detector facing the first support, respectively, and face each other with a gap interposed therebetween at a longitudinal-direction mid-portion of the magnetic field detector in the longitudinal direction. A dimension of each of the magnetic field forming units in a tangential direction of a circumference is larger than a dimension of the corresponding magnetic field forming unit in a radial direction and is larger than the distance of the gap.
摘要翻译： 根据实施例的电动机的旋转检测器包括第一支撑件和第二支撑件，一对磁场形成单元，至少一个磁场检测器，以及第一磁性构件和第二磁性构件。 第一磁性构件和第二磁性构件分别由磁性材料制成，磁体检测器的纵向方向的两端分别面对第一支撑件，并且在纵向方向中间彼此间隔开间隔开 - 磁场检测器在纵向上的分量。 每个磁场形成单元在圆周的切线方向上的尺寸大于相应的磁场形成单元在径向上的尺寸并且大于间隙的距离。
-
公开(公告)号：US20150123585A1
公开(公告)日：2015-05-07
申请号：US14526535
申请日：2014-10-29
发明人： Yasushi YOSHIDA , Yasuhiro MATSUTANI , Shiro YOSHIDOMI , Hiroshi TAKADA , Yuji ARINAGA , Ikuma MUROKITA , Masanobu HARADA , Hiroki KONDO
CPC分类号： G01D5/3473 , G01D5/2458 , G01D5/34792 , G05B1/04
摘要： An optical module includes: a light source configured to emit diffusion light to tracks; one light receiving array and another light receiving array which are arranged across the light source in a width direction substantially vertical to the measurement direction; a light receiving array arranged between the one light receiving array and the light source, and configured to receive light which is reflected at the tracks having a first incremental pattern; and a light receiving array arranged between the another first light receiving array and the light source, and configured to receive light which is reflected at the tracks having a second incremental pattern which pitch is longer than a pitch of the first incremental pattern.
摘要翻译： 光学模块包括：被配置为向轨道发射漫射光的光源; 一个光接收阵列和另一个光接收阵列，其在基本上垂直于测量方向的宽度方向上横跨光源布置; 布置在所述一个光接收阵列和所述光源之间并被配置为接收在具有第一增量图案的轨道处被反射的光的光接收阵列; 以及光接收阵列，其布置在所述另一第一光接收阵列和所述光源之间，并且被配置为接收在所述轨道处被反射的光，所述光具有第二增量图案，所述第二增量图案的间距比所述第一增量图案的间距长。
-
公开(公告)号：US20150122982A1
公开(公告)日：2015-05-07
申请号：US14526533
申请日：2014-10-29
发明人： Yasushi YOSHIDA , Yasuhiro MATSUTANI , Shiro YOSHIDOMI , Hiroshi TAKADA , Yuji ARINAGA , Ikuma MUROKITA , Masanobu HARADA , Hiroki KONDO
IPC分类号： G01D5/347
CPC分类号： G01D5/34792 , G01D5/3473
摘要： An encoder includes a track having optical effecters arranged to have an absolute pattern in a measurement direction, a light source configured to emit diffusion light to the track, and a light receiving array configured to have light receiving elements arranged in the measurement direction and to receive light reflected or transmitted by the track. The light receiving elements fall within an area which is positioned corresponding to an area between the optical effecters and to which the light reflected by the track dose not reach.
摘要翻译： 一种编码器包括具有布置成在测量方向上具有绝对图案的光学执行器的轨道，被配置为向轨道发射漫射光的光源和被配置为具有沿测量方向布置的光接收元件并且接收 由轨道反射或传输的光。 光接收元件落在对应于光学效应器之间的区域并且由光道反射的光不能到达的区域内。
-
公开(公告)号：US20130169209A1
公开(公告)日：2013-07-04
申请号：US13778120
申请日：2013-02-27
发明人： Yasushi YOSHIDA , Koji SUZUKI
CPC分类号： G01D5/266 , G01D5/3473 , G01D5/38 , G05B1/08 , H02K11/22
摘要： This disclosure discloses an encoder. The encoder includes a disk including a first and a second track. A first and a second rotating grating are formed in the first and second tracks, respectively. A first and a second detector are disposed so as to face the first and second tracks, and have a first fixed grating constructing a first diffraction interference optical system together with the first rotating grating and a second fixed grating constructing a second diffraction interference optical system together with the second rotating grating, respectively, and configured to detect a first and a second detection signal, respectively, from the first and second diffraction interference optical systems. At least one of the first and second rotating gratings is formed by a plurality of curved slits in a curved shape.
摘要翻译： 本公开公开了一种编码器。 编码器包括包括第一和第二轨道的盘。 第一和第二旋转光栅分别形成在第一和第二轨道中。 第一和第二检测器设置成面对第一和第二轨道，并且具有与第一旋转光栅一起构成第一衍射干涉光学系统的第一固定光栅和一起构成第二衍射干涉光学系统的第二固定光栅 分别具有第二旋转光栅，并且被配置为分别从第一和第二衍射干涉光学系统检测第一和第二检测信号。 第一和第二旋转光栅中的至少一个由弯曲形状的多个弯曲狭缝形成。
-
公开(公告)号：US20210072721A1
公开(公告)日：2021-03-11
申请号：US17013636
申请日：2020-09-06
摘要： An encoder includes a disc and a sensor. The disc has a circular surface with a central axis and is rotatable around the central axis. The disc has a slit row provided on the circular surface. The slit row includes slits arranged in a circumferential direction of the circular surface around the central axis and in a radial direction of the circular surface. The sensor is provided opposite to the slit row on circular surface. The sensor has a first light receiver and a second light receiver. The first light receiver is configured to output a first light receiving signal as the slit row rotates along the circumferential direction when the disc rotates around the central axis. The second light receiver is configured to output a second light receiving signal as the slit row moves along the radial direction when the disc rotates around the central axis.
-
公开(公告)号：US20210018890A1
公开(公告)日：2021-01-21
申请号：US16931493
申请日：2020-07-17
发明人： Hiroshi TAKADA , Yasushi YOSHIDA , Shiro YOSHIDOMI , Masanobu HARADA , Yasuhiro MATSUTANI , Daisuke FURUKAWA
摘要： An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.
-
公开(公告)号：US20150292918A1
公开(公告)日：2015-10-15
申请号：US14682112
申请日：2015-04-09
发明人： Yasushi YOSHIDA , Ikuma MUROKITA
CPC分类号： G01D5/34707 , G01D5/3473 , G01D5/34792 , G05B11/011 , H02K11/22
摘要： An encoder includes a disk on a rotor. First slit tracks each include slits in an incremental pattern in a measurement direction. A second slit track includes slits in an absolute pattern in the measurement direction. A light source emits light to the first and second slit tracks. First light reception arrays are offset from each other in a width direction perpendicular to the measurement direction. The first light reception arrays receive light reflected by the first slit tracks to output first light reception signals. The second light reception arrays receive light reflected by the second slit track to output second light reception signals. A selector selects one of the second light reception signals based on the first light reception signals. A position data generator generates position data of the rotor based on one of the first light reception signals and the one second light reception signal.
摘要翻译： 编码器包括转子上的盘。 第一狭缝轨道各自包括在测量方向上的增量图案中的狭缝。 第二狭缝轨道包括测量方向上的绝对图案的狭缝。 光源向第一和第二狭缝轨道发光。 第一光接收阵列在垂直于测量方向的宽度方向上彼此偏移。 第一光接收阵列接收由第一狭缝轨迹反射的光以输出第一光接收信号。 第二光接收阵列接收由第二狭缝轨迹反射的光，以输出第二光接收信号。 选择器基于第一光接收信号选择第二光接收信号之一。 位置数据发生器基于第一光接收信号和第一光接收信号之一生成转子的位置数据。
-
公开(公告)号：US20140062366A1
公开(公告)日：2014-03-06
申请号：US14016227
申请日：2013-09-03
发明人： Shiro YOSHIDOMI , Ikuma MUROKITA , Yuji ARINAGA , Yasushi YOSHIDA , Jiro MURAOKA , Shoji OYAMA
IPC分类号： H02K11/00
CPC分类号： H02K11/22 , G01D5/145 , G01P3/487 , H02K11/225
摘要： A rotation detector provided in a motor unit according to an embodiment includes a first support and a second support, a pair of magnetic field generator, at least one magnetic field detector, and a first magnetic member and a second magnetic member. The pair of magnetic field generator is provided on the first support in a manner facing the second support, and has opposite polarities. The magnetic field detector is formed by winding a coil around a magnetic element whose magnetized direction changes in the longitudinal direction, and is provided on the second support in such a manner that a longitudinal-direction side of the magnetic element faces the first support. Each of the first magnetic member and the second magnetic member is made of a magnetic material, and covers a longitudinal-direction end of the magnetic field detector facing the first support.
摘要翻译： 设置在根据实施例的电动机单元中的旋转检测器包括第一支撑件和第二支撑件，一对磁场发生器，至少一个磁场检测器以及第一磁性构件和第二磁性构件。 一对磁场发生器以面向第二支撑件的方式设置在第一支撑件上，并且具有相反的极性。 磁场检测器是通过将线圈缠绕在磁化方向沿长度方向变化的磁性元件上形成的，并且以使得磁性元件的纵向侧朝向第一支撑件的方式设置在第二支撑件上。 第一磁性构件和第二磁性构件中的每一个由磁性材料制成，并且覆盖面向第一支撑件的磁场检测器的纵向端。
-
公开(公告)号：US20130229138A1
公开(公告)日：2013-09-05
申请号：US13867132
申请日：2013-04-22
CPC分类号： G01D5/3473 , G01D5/34715 , G01D5/34792 , G05D3/125 , H02K11/22
摘要： Reflected light can be effectively utilized by increasing a light receiving area. Incremental light receiving element groups are separated and arranged in the circumferential direction of a rotating unit while placing a light source therebetween. First and second absolute light receiving element groups are arranged at both sides of the outside and inside of the light source in the radial direction of the rotating unit. As a result, first and second absolute light receiving elements are continuously arranged, and also the incremental light receiving element groups and the absolute light receiving element groups can be arranged to surround the periphery of the light source from four directions.
摘要翻译： 通过增加光接收面积可以有效地利用反射光。 增量光接收元件组在旋转单元的圆周方向上分离并布置，同时在其间放置光源。 第一和第二绝对光接收元件组沿旋转单元的径向方向布置在光源的外侧和内侧的两侧。 结果，第一绝缘光接收元件和第二绝对光接收元件被连续布置，并且增量光接收元件组和绝对光接收元件组可以被布置成从四个方向围绕光源的周边。
-
-
-
-
-
-
-
-
-
搜索结果
21 条记录 (耗时 0.019 秒)
